I know there are even pocket wifi routers that are really small. This one a friend uses and its about the size of a blackberry.
http://www.newegg.com/Product/Product.aspx?Item=N82E16833127053
I just bought the iTouch, so I'm not all that familiar with it.My concern is that I won't get the login screen and therefore won't have WiFi access.
Yes, it will pop up every 24 hours. I know your pain on not wanting to bring a laptop. I started traveling with one of these. They're about the size of a DVD case.
http://www.newegg.com/Product/Product.aspx?Item=N82E16834220545
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